US20040250830A1 - Microwavable hair curling device - Google Patents

Microwavable hair curling device Download PDF

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US20040250830A1
US20040250830A1 US10/458,757 US45875703A US2004250830A1 US 20040250830 A1 US20040250830 A1 US 20040250830A1 US 45875703 A US45875703 A US 45875703A US 2004250830 A1 US2004250830 A1 US 2004250830A1
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Prior art keywords
hair
curling device
hair curling
carrier
curlers
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US10/458,757
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US7017590B2 (en
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Vivienne Mackinder
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Mackinder Vivienne Joyce
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Priority claimed from US11/121,788 external-priority patent/US7287533B2/en
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    • AHUMAN NECESSITIES
    • A45HAND OR TRAVELLING ARTICLES
    • A45CPURSES; LUGGAGE; HAND CARRIED BAGS
    • A45C11/00Receptacles for purposes not provided for in groups A45C1/00 - A45C9/00
    • A45C11/26Roll-up holders with pockets for separate articles
    • AHUMAN NECESSITIES
    • A45HAND OR TRAVELLING ARTICLES
    • A45DHAIRDRESSING OR SHAVING EQUIPMENT; MANICURING OR OTHER COSMETIC TREATMENT
    • A45D2/00Hair-curling or hair-waving appliances ; Appliances for hair dressing treatment not otherwise provided for
    • A45D2/36Hair curlers or hair winders with incorporated heating or drying means, e.g. electric, using chemical reaction
    • A45D2/362Hair curlers or hair winders with incorporated heating or drying means, e.g. electric, using chemical reaction with a heat accumulator, i.e. for heating before use
    • AHUMAN NECESSITIES
    • A45HAND OR TRAVELLING ARTICLES
    • A45DHAIRDRESSING OR SHAVING EQUIPMENT; MANICURING OR OTHER COSMETIC TREATMENT
    • A45D4/00Separate devices designed for heating hair curlers or hair-wavers
    • A45D4/16Independent devices characterised by heating the hair-curling or hair-waving means before use
    • AHUMAN NECESSITIES
    • A45HAND OR TRAVELLING ARTICLES
    • A45DHAIRDRESSING OR SHAVING EQUIPMENT; MANICURING OR OTHER COSMETIC TREATMENT
    • A45D2/00Hair-curling or hair-waving appliances ; Appliances for hair dressing treatment not otherwise provided for
    • A45D2/12Hair winders or hair curlers for use parallel to the scalp, i.e. flat-curlers
    • A45D2/24Hair winders or hair curlers for use parallel to the scalp, i.e. flat-curlers of multi-part type, e.g. with sliding parts other than for fastening
    • A45D2/2442Hair winders or hair curlers for use parallel to the scalp, i.e. flat-curlers of multi-part type, e.g. with sliding parts other than for fastening flexible

Abstract

A microwavable hair curling device comprising a plurality of hair curlers for winding up human hair. Each curler contains a desiccant material which is surrounded by an elongate casing of flexible material with opposite first and second ends, and an axial length. The first and second ends of the curler are attachable to each other. The curlers are both stored and heated inside of a microweavable carrier. The microwavable carrier insulates the curlers from heat loss, when taken out of the microwave.

Description

    CROSS-REFERENCE TO RELATED APPLICATION(S)
  • None. [0001]
  • BACKGROUND OF THE INVENTION
  • Numerous hair curling devices have been introduced over the years. Hair curling devices come in a variety of configurations, sizes and materials. It is well known that the most efficient way to curl hair is with thermal energy. Hair can be curled in the absence of heat if the hair is wrapped around the curling device when it is wet and allowed to dry into a curl. However, waiting for hair to air dry takes a long time, making it inconvenient in today's fast paced world. In addition, rollers can be uncomfortable to wear, especially for long periods of time while waiting for hair to dry. [0002]
  • Most of the prior art hair curling devices employ an electrical heating means. A curling iron, while effective at curling hair quickly, gets extremely hot and can burn the hair and blister the skin, making it dangerous for the elderly and the young to use. In addition, a curling iron takes a long time to heat, possibly exposes the user to electric shock, and limits the user's movement to the range of the electric cord. Hot rollers, while they do not readily burn the skin or limit movement, are very hot to the touch and therefore hard to handle. In addition, hot rollers are heavy and have a tendency to fall out of the hair. [0003]
  • Microwave energy has been used as a means for heating hair curling devices. U.S. Pat. Nos. 6,064,051; 6,079,422; 5,988,182 and 6,352,080 provide curlers which may be heated directly in the microwave. The known curlers contain a microwave heatable material which transfers energy from the curler to the hair, causing the hair to curl. The curlers hold the hair in place with pins, clips, ties, surface protrusions or combs. In these cases, individual curlers are heated one at a time, immediately before being placed in the hair. If not placed immediately in the hair after being heated, the heat will dissipate from the curlers into the atmosphere. Also, the process of clipping, tying, or pinning the curler in place is cumbersome if being done by one person. This makes the process of heating and setting hair especially time consuming. Another problem with the prior art microwavable hair curlers is that they can be easily lost or misplaced. [0004]
  • It is well known in the art of cosmetology that curling hair at higher temperatures results in longer lasting curls. Unfortunately, heat is also known in the art to dry hair out, eventually causing split ends and breakage. In addition, heat can be dangerous to the skin. Thus, there continues to be a need for a hair curling device whose use of heat does not dry out the hair, is warm (not hot) to the touch, is capable of withstanding high temperatures without melting or scorching and is simple to wrap hair around and hold in place. The cylindrical roller shape of most prior art curlers gives the hair rigid, symmetrical and ultimately unnatural looking curls. In addition, though hair curlers specifically designed for microwave heating are known in the prior art, they are to be heated individually in the microwave oven in a cumbersome and time-consuming process. None of the prior art microwavable hair curling devices have been satisfactory. Thus, there exists a need for a hair curling system which is effective at curling, gentle on the hair, easy, safe and time-efficient to use, and capable of producing relaxed and natural looking curls. [0005]
  • BRIEF SUMMARY OF THE INVENTION
  • The present invention includes a microwavable hair curling device comprising a plurality of hair curlers for winding up human hair. Each curler contains a heat absorbent material which is surrounded by an elongate casing of flexible material with opposite first and second ends, and an axial length. The first and second ends of the curler are attachable to each other. The curlers are both stored and heated inside a carrier which functions as thermal insulating blanket. The thermal blanket insulates the curlers from heat loss when taken out of the microwave. The present invention also includes a method of curling human hair with a microwavable hair curling device. [0006]
  • BRIEF DESCRIPTION OF THE DRAWINGS
  • FIG. 1 is a perspective view of the hair curling device. [0007]
  • FIG. 2 is a perspective view of the carrier in a fully unrolled configuration exposing a set of microwavable hair curlers. [0008]
  • FIG. 3A is a side view of one embodiment of a hair curler of the present invention. [0009]
  • FIG. 3B is a perspective view of a section of the hair curler of FIG. 3A. [0010]
  • FIG. 4 is a perspective view showing the carrier in a partially unrolled configuration. [0011]
  • FIG. 5 is a rear view of a hair curler of the present invention placed in a section of hair. [0012]
  • FIG. 6A shows the hair curler placed near the end of a section of hair to be curled. [0013]
  • FIG. 6B shows the section of hair being wrapped around the hair curler of FIG. 6A. [0014]
  • FIG. 6C shows the ends of the hair curler fastened together alter the section of hair has been fully wrapped around the hair curler.[0015]
  • DETAILED DESCRIPTION
  • FIG. 1 is a perspective view of microwavable hair curling device [0016] 10. Microwavable hair curling device 10 consists of a carrier 12 and a set of hair curlers 14. Carrier 12 includes a thermal insulating blanket 16 which, as shown in FIG. 1, may be rolled into a cylindrical shape. Blanket 16 has an exterior surface 18 and an interior surface 20 (shown in detail in FIG. 2) made of fire retardant fabric. Straps 22 and 24 are attached on the exterior surface 18 of blanket 16. Free ends 22 a and 22 b of strap 22 are tied together, as are free ends 24 a and 24 b of strap 24 to hold carrier 12 in its fully rolled cylindrical shape. Devices other than straps 22 and 24, can be used to hold carrier 14 in its cylindrical shape so long as the device is fire retardant and microwave safe. Other embodiments of carrier 12 can be used as well. For example, blanket 16 may be simply by folded in half so that it forms a flat carrier instead of a cylinder.
  • Surfaces [0017] 18 and 20 and straps 22 and 24 of blanket 18 are made out of a microwave safe, fire-retardant fabric that is lightweight, flexible, machine washable and capable of withstanding microwave temperatures of at least about 250° F. without scorching or melting. Preferably blanket 16 is made out of fabrics with fire retardant properties such as NOMEX®, NOVEON®, MILLENIA™, KOTHMEX™ or KYNOL™ brand materials. Blanket 16 preferably is capable of withstanding microwave temperatures of at least about 600° F.
  • FIG. 2 shows the interior surface [0018] 20 of carrier 12 after thermal blanket 16 is fully unrolled. When blanket 16 is fully unrolled, carrier 12 reveals interior surface 20, center strap 26 and a set of hair curlers 14. Center strap 26 runs lengthwise down interior surface 20 of blanket 16. Hair curlers 14 are held in place under center strap 26. Curlers 14 will be discussed in more detail with reference to FIGS. 3A and 3B.
  • Interior surface [0019] 20 of blanket 16 is rectangular in shape having the following features: opposite first and second ends 28 and 30, opposite first and second side edges 32 and 34, length 36, roll axis 38, width 40 and seam 42. To reveal interior surface 20, blanket 16 is unrolled from first end 28 to second end 30 about roll axis 38. When fully unrolled, interior surface 20 is about 29 inches long along length 36. Interior surface 20 is about 8 inches wide along width 40 when measured between side edges 32 and 34. First and second ends 28 and 30 run transverse to side edges 32 and 34. Interior surface 20 and exterior surface 18 (see FIG. 1) are stitched together at seam 42.
  • Center strap [0020] 26 is attached to interior surface 20 at the following five points: 38, 40, 42, 44 and 46, however different embodiments of the present invention may differ in the number of attachment points, so long as at least one curler 14 is able to fit in between them. In FIG. 2, 15 hair curlers 14 are secured under center strap 26 in between the aforementioned attachment points. When placed under strap 26, curlers 14 are lined up side-by-side so that they are parallel to first and second ends 28 and 30 of interior surface 20. Center strap 26 is preferably made out of the same microwave-safe material as blanket 16. The fabric is lightweight, flexible, machine washable and capable of withstanding temperatures of at least about 250° F. Preferably, center strap 26 is made out of fabrics with fire retardant properties such as NOMEX®, NOVEON®, MILLENIA™, KOTHMEX™ or KYNOL™ brand materials. Hair curlers 14 may be held in place by devices other than center strap 50 so long as the device is microwave-safe, flexible, machine washable, and capable of holding curlers 14 side-by-side along interior surface 20.
  • Attachment points [0021] 38, 40, 42, 44, and 46 of center strap 26 keep curlers 14 organized so that thermal blanket 16 may be easily rolled into a cylindrical shape without curlers 14 falling out and becoming lost or misplaced. Carrier 12, complete with interior and exterior surfaces 20 and 18 of thermal blanket 16, center strap 26 and exterior strands 22 and 24, is designed to be microwave-safe, lightweight and machine washable. In addition, thermal blanket 16 is easy to roll and unroll, safe to use, easy to transport and an excellent place to store curlers in between uses.
  • FIG. 3A shows one embodiment of hair curler [0022] 14. Hair curler 14 comprises the following features: outer casing 50, axial curler length 52, body 54, opposite first and second ends 56 and 58, first and second seams 60 and 62, first fastener 64 and second fastener 66. Hair curler 14 is shaped like a rod and is about 7.5 inches long when measured along axial length 52 and about 1.25 inches in width. Both first end 56 and second end 58 are flat in order to accommodate the placement of first and second fasteners 64 and 66. The flat first and second ends 56 and 58 each measure about 2.25 long and 1.25 inches wide. The body 54 of curler 14 is not flat and has a total circumference of about 2.5 inches when measured around its center. First and second seams 60 and 62 separate body 54 of curler 14 from flat ends 56 and 58. The body portion 54 of curler 14 measures about 3.5 inches along axial curler length 52 between first and second seams 60 and 62. Outer casing 50 of hair curler 14 is made out of microwave safe, fire-retardant fabric that is lightweight, flexible, machine washable and capable of withstanding microwave temperatures of at least about 250° F. Preferably outer casing 50 is made out of fabric with fire retardant properties such as NOMEX®, NOVEON®, MILLENIA™, KOTHMEX™ or KYNOL™ brand materials.
  • Fasteners [0023] 64 and 66 are preferably made of hook and loop material, capable of withstanding microwave temperatures of at least about 250° F. First fastener 64 is disposed on the top of first end 56 while second fastener 66 is disposed on the bottom of second end 58. First fastener 64 is preferably composed of tiny loops 68 while second fastener 66 is composed of tiny hooks 70. Seams 60 and 62 protect ends 56 and 58 of curler 14 from getting too hot and damaging fasteners 64 and 66. The hook and loop fastening device used in this embodiment may be replaced by other machine washable, microwave-safe fastening devices so long as both ends of the curler are capable of fastening together and the fastener does not melt or scorch under microwave heat.
  • FIG. 3B is a perspective view of a section of the hair curler [0024] 14 of FIG. 3A. The cross-section of hair curler 14 shows the following components: Outer casing 50, body 54, axial curler length 52, first and second ends 56 and 58, first and second seams 60 and 62, first and second fasteners 64 and 66, interior cavity 72 and heat absorbent material 74. Outer casing 50 is the outermost layer of curler 14 and covers the entire curler 14. Interior cavity 72 forms the inside of body 54. Interior cavity 72 is filled with heat absorbent material 74, preferably in the form of silica beads or other desiccant material.
  • A heat absorbent material [0025] 74 fills interior cavity 72 of hair curler 14. Heat absorbent material 74 includes but is not limited to silica beads, buckwheat, flax seed, thermal gel, and any other desiccant material capable of releasing moisture when heated in the microwave. In one embodiment, heat absorbent material 74 is in the form of silica beads, specifically SiO2 99.5%; Na2O 0.021%; Fe2O3 0.02%; MgO 0.01%; Ca 0.04%; A12O3 0.16%, and other compounds 0.01%. The grain size of each silica bead can vary from about 0.5 to 5.0 mm in diameter.
  • Silica beads are preferably used as heat absorbent material [0026] 74 because as a desiccant they adsorb moisture at room temperature and release moisture upon being heated in the microwave at temperatures of approximately 250° F. to 350° F. When using the preferred embodiment of the present invention, post-microwaved silica beads release moisture and heat through outer casing 50 of hair curler 14 into the hair shaft. Thus, hair curler 14, when used according to the present invention, both moisturizes and curls hair at the same time. Once hair cools, which takes about five minutes, the curls are set and the curlers may be removed.
  • Hygiene is important in personal care, especially if several people in a family are using the same styling tool. Styling products, such as hair spray and gel, can build up on hair curling tools. The build up of old styling product on hair curling tools is unhygienic and not good for styling performance reasons. Fire retardant fabric and silica, as used in the present invention, are machine washable and make curling hair with the present invention more sanitary than conventional methods. In addition, fabric is gentle on the hair, unlike bristles, plastic and metal styling tools. Because the outer casing [0027] 50 of curler 14 is made of soft fabric and the shape of the curler 14 is not cylindrical, each curl produced by the present invention is unique—unlike curls produced by roller cylinders of consistent form and uniform shape.
  • To use the microwavable hair curling device [0028] 10, carrier 12 is placed in a microwave oven in its fully rolled configuration. Once heated to a temperature capable of curling human hair, about two to three minutes on high heat, the rolled up carrier 12 is taken out of the microwave, untied and unrolled to expose one curler at a time. FIG. 4 is a perspective view of carrier 12 being used according to the present invention. FIG. 4 shows the following features: thermal blanket 16, strap 22 and its free ends 22 a and 22 b, strap 24 and its free ends 24 a and 24 b, exterior surface 18, interior surface 20, center strap 26, first end 28, length 36, roll axis 38, and curlers 14. Once carrier 12 is taken out of the microwave, free strands 22 a and 22 b and 24 a and 24 b are untied. Carrier 12 is then opened by unrolling thermal blanket 16 from first end 28 to second end 30 down its length 36. Carrier 12 is preferably unrolled slowly so that only one curler is exposed at a time. FIG. 4 is an example of how carrier 12 is unrolled to reveal just one curler 14 at a time. FIG. 4 shows one curler 14 held in place against interior surface 20 under center strap 26. The remaining curlers 14, remain wrapped inside the rolled portion of carrier 12 where they stay warm while awaiting use.
  • To use the present invention, human hair is first divided into sections that the user wishes to curl. Immediately after exposing a warm curler [0029] 14 as shown in FIG. 4, said curler is removed from carrier 12 and placed in the section of hair the user wishes to curl, as shown in FIG. 5. FIG. 6A through FIG. 6C show the steps involved in using the present invention after a warm curler 14 has been removed from carrier 12. FIG. 6A shows curler 14 placed at the end of a section of hair that a user wishes to curl. FIG. 6B shows wrapping a section of hair around the outer casing 50 of curler 14. Hair may be wrapped in either direction, over or under curler 14, depending on the desired curl. Once a section of hair is fully wrapped around curler 14, the curler is fastened together to hold the curl in place. FIG. 6C shows a rear view of a user securing curler 14 in place by bending curler 14 along its axial length 36 and attaching fastener 64 to fastener 66. Because hair is wound multiple times around hair curler 14 (see FIG. 6B and FIG. 6C), curler 14 will not fall out. Curler 14 is lightweight and easy to fasten in place. For each additional section of hair a user wishes to curl, another warm curler is removed from carrier 12 while the remaining curlers stay warm inside carrier 12. Steps in FIG. 6A through FIG. 6C are repeated for each additional hair section. Once the wrapped hair cools (approximately 5 minutes), curlers 14 are removed, leaving a natural wavy curl that is easy to style.
  • The present invention provides a fast, safe, clean and easy way to curl hair. Whereas previous hair curling devices were effective at curling hair, their intense heat dried out the user's hair and posed a risk of burning the user's skin. In addition, devices heated with electrical heat put the user at risk of electrical shock and limited the user's movement to the range of the electric cord. The present invention solves these problems by providing a hair curling device whose use of heat does not dry out the hair, is warm (not hot) to the touch and is simple to wrap hair around and hold in place. In addition, the carrier of the present invention solves the cumbersome and time-consuming process of having to heat individual curlers in the microwave one at a time. The carrier allows all curlers to be heated together in the microwave in one easy step, and prevents the curlers from losing heat when they are taken out of the microwave. The carrier also provides a place to store curlers between uses so that the curlers are not lost or misplaced. [0030]
  • Although the present invention has been described with reference to preferred embodiments, workers skilled in the art will recognize that changes may be made in form and detail without departing from the spirit and scope of the invention. [0031]

Claims (25)

1. A hair curling device comprising:
a plurality of hair curlers for winding up human hair, each curler comprising an elongate casing of flexible material having opposite first and second ends, a body and an axial length, the first and second ends being attachable to each other;
a heat absorbent material contained within the body; and
a carrier for retaining the plurality of curlers, wherein the carrier insulates the curlers from heat loss prior to individual curler use.
2. The hair curling device of claim 1 in which the elongate casing of flexible material comprises a fabric.
3. The hair curling device of claim 1 in which the flexible material comprises a material capable of withstanding temperatures of at least about 250° F.
4. The hair curling device of claim 1 in which the flexible material comprises a fire retardant material capable of withstanding temperatures of at least about 600° F.
5. (Canceled)
6. The hair curling device of claim 1 further comprising a fastener which attaches the opposite first and second ends of the casing to each other.
7. The hair curling device of claim 6 in which the fastener is capable of withstanding temperatures of at least about 250° F.
8. The hair curling device of claim 7 in which the fastener is a hook and loop fastener comprising a hook portion and a loop portion.
9. The hair curling device of claim 8 in which the hook portion is disposed on the first end and the loop portion is disposed on the second end of the casing.
10. The hair curling device of claim 1 in which the body is separated from the first and second ends by first and second seams, respectively.
11. The hair curling device of claim 10 in which the heat absorbent material substantially fills the body of the casing in between the first and second seams.
12. The hair curling device of claim 1 in which the plurality of hair curlers and the carrier are heatable in a microwave oven.
13. The hair curling device of claim 1 in which the heat absorbent material absorbs moisture at room temperature and expels moisture when heated.
14. The hair curling device of claim 13 in which the heat absorbent material expels moisture when heated to a temperature between approximately 250-350° F.
15. The hair curling device of claim 14 in which the heat absorbent material is selected from a group consisting of silica, buckwheat, flax-seed, and thermal gel.
16. The hair curling device of claim 13 in which the heat absorbent material is in the form of silica beads having a grain size between about 0.5 and about 5.0 mm in diameter.
17. The hair curling device of claim 1 in which the carrier comprises:
an elongate piece of flexible material with an interior surface and an exterior surface, opposite first and second ends, a length; and a center strap disposed on the interior surface along the length.
18. The hair curling device of claim 17 in which the plurality of hair curlers are secured between the center strap and the interior surface of the carrier such that the axial length of each of the hair curlers is perpendicular to the length of the carrier.
19. The hair curling device of claim 17 in which the first end of the carrier is rolled along its length toward the second end of the carrier such that the exterior surface of the carrier forms an exterior surface of a cylinder.
20-34. (Canceled)
35. A microwave hair curling device comprising:
a plurality of hair curlers, each of the plurality of hair curlers used individually; and
a carrier comprising:
an elongate blanket of microwave-safe flexible material;
a central strap disposed on the interior surface of the blanket under which the hair curlers are held in place; and
a fastening device disposed on the exterior surface of the blanket and used to keep the blanket in a fully rolled configuration.
36. The microwave hair curling device of claim 35 in which the flexible material comprises a fabric capable of withstanding temperatures of at least about 250° F.
37. The microwave hair curling device of claim 35 in which the flexible material comprises a fire retardant fiber capable of withstanding temperatures of at least about 600° F.
38. (Canceled)
39. The microwave hair curling device of claim 35 in which the carrier is configured to be unrolled to reveal only one curler at a time while the rest of the curlers remain rolled inside the carrier.
US10/458,757 2003-06-10 2003-06-10 Microwavable hair curling device Expired - Fee Related US7017590B2 (en)

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US10/458,757 US7017590B2 (en) 2003-06-10 2003-06-10 Microwavable hair curling device
US11/121,788 US7287533B2 (en) 2003-06-10 2005-05-04 Hair curling device
US11/221,224 US7806124B2 (en) 2003-06-10 2005-09-07 Heatable hair curler

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US11/221,224 Division US7806124B2 (en) 2003-06-10 2005-09-07 Heatable hair curler

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WO2013183021A1 (en) 2012-06-07 2013-12-12 L'oreal Method of shaping hair using fatty bodies, non-silicone polymers or surfactants
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US7017590B2 (en) 2006-03-28

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